What foods are really sour?

1. Lemons: Lemons are a classic example of a sour food. They are often used in cooking, baking, and as a garnish.

2. Limes: Limes are similar to lemons in terms of their sourness, but they have a slightly different flavor profile. They are also commonly used in cooking and baking.

3. Grapefruits: Grapefruits are another citrus fruit that is known for its sour taste. They are often eaten for breakfast or as a snack.

4. Oranges: While oranges are not as sour as lemons, limes, or grapefruits, they still have a tartness to them. They are a popular fruit for juicing and eating.

5. Cranberries: Cranberries are a type of berry that is very tart. They are often used in juices, sauces, and desserts.

6. Rhubarb: Rhubarb is a vegetable that has a sour taste. It is often used in pies, jams, and other desserts.

7. Sorrel: Sorrel is a leafy green vegetable that has a lemony, sour flavor. It is often used in soups, salads, and stews.

8. Pickles: Pickles are cucumbers that have been preserved in a vinegar solution. They are often sour and salty, and they are a popular snack and condiment.

9. Sauerkraut: Sauerkraut is a fermented cabbage dish that has a sour taste. It is often served with sausages or other meats.

10. Kimchi: Kimchi is a Korean fermented cabbage dish that is similar to sauerkraut. It has a spicy and sour flavor, and it is often served as a side dish or condiment.